Karole Morgan-Prager - 20 May 2026 Form 4 Insider Report for BLACKLINE, INC. (BL)

Reporting relationship: Chief Legal and Administrative
Issuer ticker: BL
Reported as of: 20 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 May 2026, 16:24:17 UTC
Prior SEC filing: 03 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Karole Morgan-Prager

Key filing fact

Karole Morgan-Prager filed Form 4 for BLACKLINE, INC. (BL) on 21 May 2026.

Key facts

This page summarizes Karole Morgan-Prager's Form 4 filing for BLACKLINE, INC. (BL).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 21 May 2026, 16:24.

Change

Previous filing in this sequence was filed on 03 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001183627 Primary reporting owner

Morgan-Prager Karole

Relationship: Chief Legal and Administrative
Address: 21300 VICTORY BLVD., 12TH FLOOR, WOODLAND HILLS
Signature: /s/ Karole Morgan-Prager
Signature date: 21 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BL transaction

Common Stock

Tax liability

Transaction value
Shares: -778
Change %: -0.47%
Price: $30.84^*
Shares after: 164,881
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

BL transaction

Common Stock

Tax liability

Transaction value
Shares: -884
Change %: -0.54%
Price: $30.84^*
Shares after: 163,997
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

BL transaction

Common Stock

Tax liability

Transaction value
Shares: -1,063
Change %: -0.65%
Price: $30.84^*
Shares after: 162,934
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .